Pork Ginger Udon Soup Made Simple

Name: Pork Ginger Udon Soup Made Simple
Ingredients: 1⁄4 lb pork, cut into extra thin bite size pieces; salt and pepper; 1⁄2 tablespoon cornstarch; 1 carrot, skinned and cut into large julienne size; 1⁄2 bunch spinach, washed and cut into bite size pieces; 1⁄4 napa cabbage, washed and cut into bite size pieces; 2 1⁄2 cups cooked udon noodles; 3 cups homemade vegetable broth (Swanson ok, see description) or 3 cups homemade chicken broth (Swanson ok, see description); 1 tablespoon sake; 1 tablespoon oyster sauce; 1 tablespoon soy sauce; 1 1⁄2 tablespoons cornstarch; 1 tablespoon water; 1 tablespoon grated ginger, paste form